<?php

class BackendController extends Module
{
	/**
	 * @var string the default layout for the views. Defaults to '//layouts/column2', meaning
	 * using two-column layout. See 'protected/views/layouts/column2.php'.
	 */

	/**
	 * @return array action filters
	 */
	public function filters()
	{
		return array(
			'accessControl', // perform access control for CRUD operations
			'postOnly + create,update', // we only allow deletion via POST request
		);
	}

    public function init()
    {
        if(!Yii::app()->user->isAdmin)
        {
            $this->redirect(Yii::app()->createUrl('/user/login'));
        }
    }
	/**
	 * Specifies the access control rules.
	 * This method is used by the 'accessControl' filter.
	 * @return array access control rules
	 */
	public function accessRules()
	{
		return array(
			array('allow',  // allow all users to perform 'index' and 'view' actions
				'actions'=>array('index','view'),
				'users'=>array('*'),
			),
			array('allow', // allow authenticated user to perform 'create' and 'update' actions
				'actions'=>array('create','update'),
				'users'=>array('@'),
			),
			array('allow', // allow admin user to perform 'admin' and 'delete' actions
				'actions'=>array('view','index','create','update','delete','admin'),
				'roles'=>array('admin'),
			),
			array('deny',  // deny all users
				'users'=>array('*'),
			),
		);
	}

	/**
	 * Displays a particular model.
	 * @param integer $id the ID of the model to be displayed
	 */
	public function actionView($id)
	{
		$this->render('view',array(
			'model'=>$this->loadModel($id),
		));
	}

	/**
	 * Creates a new model.
	 * If creation is successful, the browser will be redirected to the 'view' page.
	 */
	public function actionCreate()
	{
		$model=new Article;

		// Uncomment the following line if AJAX validation is needed
		 $this->performAjaxValidation($model);

		if(isset($_POST['Article']))
		{
			$model->attributes=$_POST['Article'];

            $model->imagefile=CUploadedFile::getInstance($model,'image');

            if(isset($model->imagefile))
            {
                $newname = uniqid().'.'.$model->imagefile->extensionName;
                $model->image = $newname;
            }

			if($model->save())
            {
                if(isset($model->image))
                {

                    $uploads_folder = Yii::app()->getModule('article')->params->image;
                    if(!$uploads_folder.$model->id)
                    {
                        $article_id = $model->id;
                        mkdir($uploads_folder.$article_id,0777);
                    }
                    $path =  $uploads_folder.$article_id.DIRECTORY_SEPARATOR.$newname;
                    $model->imagefile->saveAs($path);
                    $avatar = new YiiResize();
                    $avatar->height = 150;
                    $avatar->quality =95;
                    $avatar->destination =  Yii::getPathOfAlias('webroot').'/images/article/'.$model->id;
                    $avatar->fileName = $newname;
                    $avatar->src = Yii::getPathOfAlias('webroot').'/images/article/'.$model->id.'/'.$newname;
                    $avatar->rewrite = true;
                    $avatar->resize();


                }
                Yii::app()->user->setFlash('success',Yii::t('ArticleModule.base','Article was successfully created.'));
                $this->redirect(array('view','id'=>$model->id));
            }
		}

		$this->render('create',array(
			'model'=>$model,
		));
	}

	/**
	 * Updates a particular model.
	 * If update is successful, the browser will be redirected to the 'view' page.
	 * @param integer $id the ID of the model to be updated
	 */
	public function actionUpdate($id)
	{
		$model=$this->loadModel($id);

		// Uncomment the following line if AJAX validation is needed
		 $this->performAjaxValidation($model);

		if(isset($_POST['Article']))
		{
			$model->attributes=$_POST['Article'];
            $model->imagefile = CUploadedFile::getInstance($model,'image');
            if(isset($model->imagefile))
            {
                $newname = uniqid().'.'.$model->imagefile->extensionName;
                $model->image = $newname;
            }
			if($model->save())
            {
                if(isset($model->imagefile))
                {
                    $uploads_folder = Yii::getPathOfAlias('webroot').'/images/article/'.$model->id;
                    if(!file_exists($uploads_folder))
                    {
                        mkdir($uploads_folder,0777);
                    }
                    $path =  $uploads_folder.DIRECTORY_SEPARATOR.$newname;
                    $model->imagefile->saveAs($path);
                    $avatar = new YiiResize();
                    $avatar->height = 150;
                    $avatar->quality =95;
                    $avatar->destination =  Yii::getPathOfAlias('webroot').'/images/article/'.$model->id;
                    $avatar->fileName = $newname;
                    $avatar->src = Yii::getPathOfAlias('webroot').'/images/article/'.$model->id.'/'.$newname;
                    $avatar->rewrite = true;
                    $avatar->resize();
                }
                Yii::app()->user->setFlash('success',Yii::t('ArticleModule.base','Article updated successfully.'));
                $this->redirect(array('view','id'=>$model->id));
            }

		}

		$this->render('update',array(
			'model'=>$model,
		));
	}

	/**
	 * Deletes a particular model.
	 * If deletion is successful, the browser will be redirected to the 'admin' page.
	 * @param integer $id the ID of the model to be deleted
	 */
	public function actionDelete($id)
	{

		$this->loadModel($id)->delete();

		// if AJAX request (triggered by deletion via admin grid view), we should not redirect the browser
		if(!isset($_GET['ajax']))
			$this->redirect(isset($_POST['returnUrl']) ? $_POST['returnUrl'] : array('admin'));
	}

	/**
	 * Lists all models.
	 */
	public function actionIndex()
	{
		$dataProvider=new CActiveDataProvider('Article',array(

            'pagination'=>array('pageSize'=>10)
        ));
		$this->render('index',array(
			'dataProvider'=>$dataProvider,

		));
	}

	/**
	 * Manages all models.
	 */
	public function actionAdmin()
	{
		$model=new Article('search');
		$model->unsetAttributes();  // clear any default values
		if(isset($_GET['Article']))
			$model->attributes=$_GET['Article'];

		$this->render('admin',array(
			'model'=>$model,
		));
	}

	/**
	 * Returns the data model based on the primary key given in the GET variable.
	 * If the data model is not found, an HTTP exception will be raised.
	 * @param integer $id the ID of the model to be loaded
	 * @return Article the loaded model
	 * @throws CHttpException
	 */
	public function loadModel($id)
	{
		$model=Article::model()->findByPk($id);
		if($model===null)
			throw new CHttpException(404,'The requested page does not exist.');
		return $model;
	}

	/**
	 * Performs the AJAX validation.
	 * @param Article $model the model to be validated
	 */
	protected function performAjaxValidation($model)
	{
		if(isset($_POST['ajax']) && $_POST['ajax']==='article-form')
		{
			echo CActiveForm::validate($model);
			Yii::app()->end();
		}
	}
}
